Legal claims defining the scope of protection. Each claim is shown in both the original legal language and a plain English translation.
1. A touch panel comprising: first touch electrodes comprising sub electrodes spaced apart from one another in a first direction, the first touch electrodes being spaced apart from one another in a second direction crossing the first direction; second touch electrodes extending in the second direction, the second touch electrodes being spaced apart from one another in the first direction; and third touch electrodes extending in the second direction and spaced apart from one another in the first direction, the third touch electrodes being shaped differently than the second touch electrodes, wherein: the first touch electrodes, the second touch electrodes, and the third touch electrodes are disposed in the same plane as one another and electrically insulated from one another; the first touch electrodes and the second touch electrodes are configured to detect, independent of the third touch electrodes, a first touch of a first touch input member; and the first touch electrodes and the third touch electrodes are configured to detect, independent of the second touch electrodes, a second touch of a second touch input member different from the first touch input member.
A touch panel system is designed to detect multiple simultaneous touch inputs using distinct electrode configurations. The system includes first touch electrodes arranged in a grid pattern, with sub-electrodes spaced apart in a first direction and the first touch electrodes spaced apart in a second direction that crosses the first direction. Second and third touch electrodes extend in the second direction but are spaced apart in the first direction. The third touch electrodes have a different shape compared to the second touch electrodes. All three types of electrodes are positioned in the same plane and are electrically insulated from one another. The first and second touch electrodes work together to detect a first touch input from a first touch input member, such as a finger or stylus, while the first and third touch electrodes independently detect a second touch input from a different touch input member. This dual-detection capability allows the touch panel to distinguish between multiple simultaneous touch interactions, improving accuracy and functionality. The different shapes of the second and third touch electrodes enhance the system's ability to differentiate between touch inputs, ensuring reliable performance in multi-touch applications. The design ensures that the electrodes operate independently, preventing interference and maintaining precise touch detection.
2. A touch panel comprising: first touch electrodes comprising sub electrodes spaced apart from one another in a first direction, the first touch electrodes being spaced apart from one another in a second direction crossing the first direction; second touch electrodes extending in the second direction, the second touch electrodes being spaced apart from one another in the first direction; and third touch electrodes extending in the second direction and spaced apart from one another in the first direction, the third touch electrodes being shaped differently than the second touch electrodes, wherein: the first touch electrodes, the second touch electrodes, and the third touch electrodes are disposed in the same plane as one another and electrically insulated from one another; the first touch electrodes and the second touch electrodes are configured to detect a first touch of a first touch input member; the first touch electrodes and the third touch electrodes are configured to detect a second touch of a second touch input member different from the first touch input member; the first touch input member is a portion of a human body; and the second touch input member is a touch pen.
A touch panel system is designed to distinguish between different types of touch inputs, such as a human finger and a touch pen, using multiple sets of electrodes arranged in the same plane. The system includes first touch electrodes composed of sub-electrodes spaced apart in a first direction, with the first touch electrodes themselves spaced apart in a second direction that crosses the first direction. Additionally, there are second touch electrodes extending in the second direction and spaced apart in the first direction, as well as third touch electrodes also extending in the second direction but spaced apart in the first direction and shaped differently from the second touch electrodes. All three sets of electrodes are electrically insulated from one another. The first and second touch electrodes work together to detect a first type of touch input, such as a human finger, while the first and third touch electrodes detect a second type of touch input, such as a touch pen. This configuration allows the touch panel to differentiate between the two input types based on their distinct electrical properties. The electrodes are arranged in a single plane, ensuring a compact and efficient design while maintaining accurate touch detection. This system enhances user interaction by enabling precise identification of different touch input methods, improving functionality in devices requiring multi-input capabilities.
3. The touch panel of claim 1 , wherein: the first touch electrodes comprise a first touch electrode that is disposed in association with a first touch cell of the touch panel, the first touch electrode comprises a first sub electrode and a second sub electrode spaced apart from the first sub electrode; and the second touch electrodes comprise a second touch electrode that is disposed in association with the first touch cell, the second touch electrode is disposed between the first sub electrode and the second sub electrode.
A touch panel includes a plurality of touch electrodes arranged in a grid to detect touch inputs. The touch electrodes are divided into first and second sets, where the first set includes touch electrodes with two sub-electrodes spaced apart, and the second set includes touch electrodes positioned between the sub-electrodes of the first set. This arrangement improves touch sensitivity and accuracy by ensuring that each touch cell is covered by both a first and a second touch electrode, allowing for more precise touch detection. The first and second touch electrodes may be driven or sensed independently to enhance performance. The touch panel may be integrated into a display device, such as a liquid crystal display or an organic light-emitting diode display, to provide a combined touch and display functionality. The described configuration helps reduce interference and improves signal-to-noise ratio, making the touch panel more reliable in various operating conditions. The touch electrodes may be formed using transparent conductive materials, such as indium tin oxide, to maintain display visibility while enabling touch functionality.
4. The touch panel of claim 3 , further comprising: a first bridge electrically connecting the first sub electrode and the second sub electrode, the first bridge overlapping the second touch electrode.
A touch panel system includes a plurality of touch electrodes arranged in a grid pattern, where each touch electrode is divided into at least two sub-electrodes. The sub-electrodes are electrically connected by a bridge structure that overlaps with an adjacent touch electrode. This configuration allows for improved touch sensing accuracy and reduced interference between adjacent electrodes. The bridge structure ensures continuous electrical connectivity between the sub-electrodes while minimizing signal distortion caused by overlapping regions. The touch panel is designed to detect touch inputs by measuring changes in capacitance between the touch electrodes and a user's finger or stylus. The overlapping bridge structure helps maintain signal integrity during touch detection, particularly in high-resolution touch panels where electrode density is high. This design is useful in applications requiring precise touch sensing, such as smartphones, tablets, and interactive displays. The system may also include additional conductive layers or shielding to further enhance performance.
5. The touch panel of claim 3 , wherein: the first touch electrode further comprises a third sub electrode disposed in association with a second touch cell adjacent to the first touch cell; and the third touch electrodes comprise a third touch electrode that is disposed between the second sub electrode and the third sub electrode.
This invention relates to touch panel technology, specifically improving touch detection accuracy in capacitive touch panels. The problem addressed is the difficulty in accurately detecting touch inputs, particularly in multi-touch scenarios, due to interference between adjacent touch electrodes. The solution involves a touch panel with an array of touch cells, each containing multiple sub-electrodes that enhance touch sensitivity and reduce crosstalk. The touch panel includes a first touch electrode associated with a first touch cell, where the first touch electrode comprises a first sub-electrode and a second sub-electrode. A second touch electrode is associated with a second touch cell adjacent to the first touch cell, and a third touch electrode is positioned between the second sub-electrode and a third sub-electrode of the first touch electrode. This arrangement improves signal isolation and reduces interference between adjacent touch cells, leading to more precise touch detection. The third sub-electrode is part of the first touch electrode but is positioned near the second touch cell, allowing for better differentiation between touches in closely spaced areas. The third touch electrode, placed between the second and third sub-electrodes, further refines touch signal separation, ensuring accurate multi-touch recognition. This design enhances the overall performance of capacitive touch panels by minimizing signal distortion and improving touch resolution.
6. The touch panel of claim 5 , further comprising: a second bridge electrically connecting the second sub electrode and the third sub electrode, the second bridge overlapping the third touch electrode.
A touch panel system includes multiple touch electrodes arranged in a grid pattern, where each touch electrode is divided into sub-electrodes. The system is designed to improve touch sensitivity and reduce interference in capacitive touch panels. The touch panel includes a first bridge that electrically connects a first sub-electrode to a second sub-electrode, where this bridge overlaps a first touch electrode. Additionally, a second bridge electrically connects a second sub-electrode to a third sub-electrode, and this second bridge overlaps a third touch electrode. The overlapping bridges help maintain electrical continuity between sub-electrodes while minimizing signal interference from adjacent touch electrodes. This configuration enhances touch detection accuracy by ensuring stable electrical connections between sub-electrodes, even when the touch panel is subjected to mechanical stress or environmental factors. The system is particularly useful in large-area touch panels where maintaining uniform touch sensitivity across the entire surface is critical. The overlapping bridges prevent signal degradation and improve the overall robustness of the touch panel, making it suitable for applications requiring high reliability, such as industrial touchscreens or outdoor displays.
7. The touch panel of claim 3 , further comprising: a fourth touch electrode disposed between the first sub electrode and the second touch electrode.
A touch panel system includes a plurality of touch electrodes arranged in a grid pattern to detect touch inputs. The electrodes are divided into sub-electrodes to improve touch sensitivity and reduce interference. The system includes a first touch electrode and a second touch electrode, each divided into sub-electrodes. A third touch electrode is positioned between the first and second touch electrodes to enhance signal isolation and reduce crosstalk. Additionally, a fourth touch electrode is disposed between the first sub-electrode of the first touch electrode and the second touch electrode. This fourth touch electrode further improves signal integrity by providing additional shielding and reducing electromagnetic interference between adjacent electrodes. The arrangement ensures accurate touch detection while minimizing false signals caused by environmental noise or adjacent electrode interactions. The system is particularly useful in high-resolution touchscreens where precise touch localization is required. The additional electrode enhances performance by maintaining signal clarity and reducing distortion, making the touch panel more reliable in various operating conditions.
8. The touch panel of claim 3 , wherein: the first sub electrode comprises: a first inclined portion facing a first inclined portion of the second touch electrode; and a second inclined portion facing a second inclined portion of the second touch electrode; the first inclined portion of the first sub electrode comprises a first bent portion; and the second inclined portion of the first sub electrode comprises a second bent portion.
This invention relates to touch panel technology, specifically improving the structure of touch electrodes to enhance sensitivity and accuracy. The problem addressed is the need for more precise and reliable touch detection in touch panels, particularly in devices where multiple touch points must be accurately distinguished. The invention involves a touch panel with a first sub electrode and a second touch electrode, each having inclined portions that face each other. The first sub electrode includes a first inclined portion with a first bent portion and a second inclined portion with a second bent portion. These bent portions create a more complex interaction between the electrodes, improving the detection of touch inputs by increasing the sensitivity and reducing interference between adjacent touch points. The inclined and bent portions of the electrodes are designed to optimize the electric field distribution, ensuring that touch inputs are accurately captured and processed. This structural refinement allows for better performance in touch panels, particularly in applications requiring high precision, such as smartphones, tablets, and other touch-sensitive devices. The invention focuses on the geometric arrangement of the electrodes to enhance touch detection without requiring additional components or complex circuitry.
9. The touch panel of claim 3 , wherein: the first sub electrode comprises: a first inclined portion facing a first inclined portion of the second touch electrode; and a second inclined portion facing a second inclined portion of the second touch electrode; and a contact portion of the first inclined portion of the first sub electrode and the second inclined portion of the first sub electrode comprises a concave portion.
This invention relates to touch panel technology, specifically improving the design of touch electrodes to enhance sensitivity and accuracy. The problem addressed is the need for more precise and reliable touch detection in touch panels, particularly in devices where multiple touch points or gestures must be accurately distinguished. The invention describes a touch panel with a first sub-electrode and a second touch electrode, each having inclined portions that face each other. The first sub-electrode includes a first inclined portion aligned with a first inclined portion of the second touch electrode and a second inclined portion aligned with a second inclined portion of the second touch electrode. The contact area between the first and second inclined portions of the first sub-electrode forms a concave portion. This concave design improves the electrical coupling between the electrodes, enhancing touch detection performance by reducing interference and increasing signal clarity. The inclined and concave structures allow for more precise capacitive sensing, which is critical for applications requiring high-resolution touch input, such as smartphones, tablets, and interactive displays. The design ensures consistent performance across different touch scenarios, including multi-touch and edge gestures.
10. The touch panel of claim 3 , further comprising: a connecting electrode overlapping with the second touch electrode; a first bridge electrically connecting the first sub electrode and the connecting electrode, the first bridge overlapping with the second touch electrode; and a second bridge electrically connecting the second sub electrode and the connecting electrode, the second bridge overlapping with the second touch electrode.
A touch panel includes a first touch electrode and a second touch electrode arranged in a matrix configuration. The first touch electrode is divided into a first sub electrode and a second sub electrode, which are electrically connected to each other. The second touch electrode is positioned to overlap with the first touch electrode. The touch panel further includes a connecting electrode that overlaps with the second touch electrode. A first bridge electrically connects the first sub electrode and the connecting electrode, and this bridge also overlaps with the second touch electrode. Similarly, a second bridge electrically connects the second sub electrode and the connecting electrode, and this bridge also overlaps with the second touch electrode. This configuration allows for improved electrical connectivity and signal transmission within the touch panel while maintaining a compact design. The overlapping arrangement of the bridges and the connecting electrode with the second touch electrode helps minimize interference and ensures reliable touch sensing performance. The design is particularly useful in high-resolution touch panels where precise and stable electrical connections are required.
11. The touch panel of claim 3 , wherein: the first sub electrode comprises: a first inclined portion facing a first inclined portion of the second touch electrode; and a second inclined portion facing a second inclined portion of the second touch electrode; the first inclined portion of the first sub electrode comprises zigzag shapes; and the second inclined portion of the first sub electrode comprises zigzag shapes.
A touch panel includes a first sub-electrode and a second touch electrode, each having inclined portions with zigzag shapes. The first sub-electrode has a first inclined portion facing a corresponding first inclined portion of the second touch electrode and a second inclined portion facing a corresponding second inclined portion of the second touch electrode. Both inclined portions of the first sub-electrode feature zigzag patterns. The zigzag shapes in the inclined portions enhance touch sensitivity and accuracy by optimizing the electric field distribution between the electrodes. This design improves signal detection and reduces interference, particularly in multi-touch applications. The inclined portions with zigzag patterns allow for precise touch localization and better resistance to environmental noise. The touch panel is suitable for use in devices requiring high-precision touch input, such as smartphones, tablets, and interactive displays. The zigzag configuration ensures uniform electric field strength across the touch surface, improving overall performance and reliability.
12. The touch panel of claim 11 , further comprising: a fourth touch electrode between the first inclined portion of the first sub electrode and the first inclined portion of the second touch electrode, wherein the fourth touch electrode comprises zigzag shapes.
A touch panel includes a substrate with a plurality of touch electrodes arranged in a grid pattern. The touch electrodes are divided into sub-electrodes, each having inclined portions that form a V-shape. These inclined portions are positioned at the edges of the sub-electrodes and are oriented in opposite directions to create a staggered arrangement. The touch panel further includes a fourth touch electrode placed between the first inclined portions of a first sub-electrode and a second touch electrode. This fourth touch electrode has a zigzag shape, which enhances the detection of touch inputs by improving signal uniformity and reducing interference. The zigzag design allows for more precise touch localization and better sensitivity, particularly in areas where multiple touch electrodes intersect. The overall structure ensures reliable touch detection while maintaining a compact and efficient electrode layout. The inclined portions and zigzag-shaped electrode help mitigate signal distortion and improve the accuracy of touch sensing in various applications, such as smartphones, tablets, and other touch-sensitive devices.
13. The touch panel of claim 1 , wherein: the first touch electrodes comprise a first touch electrode that is disposed in association with a first touch cell of the touch panel, the first touch electrode comprising a first sub electrode and a second sub electrode spaced apart from the first sub electrode; the second touch electrodes comprise a second touch electrode that is disposed in association with the first touch cell, the second touch electrode comprising a third sub electrode and a fourth sub electrode spaced apart from the third sub electrode, the third sub electrode and the fourth sub electrode being disposed between the first sub electrode and the second sub electrode; and the third touch electrodes comprise a third touch electrode that is disposed in association with the first touch cell and is disposed between the third sub electrode and the fourth sub electrode.
A touch panel includes multiple touch electrodes arranged in a specific configuration to improve touch sensing accuracy. The touch panel comprises first, second, and third sets of touch electrodes, each associated with individual touch cells. Within a single touch cell, the first set includes a first touch electrode divided into two sub-electrodes spaced apart from each other. The second set includes a second touch electrode, also divided into two sub-electrodes spaced apart, positioned between the sub-electrodes of the first touch electrode. The third set includes a third touch electrode placed between the sub-electrodes of the second touch electrode. This arrangement enhances touch detection by providing overlapping and interleaved electrode structures, allowing for more precise localization of touch inputs. The design ensures that each touch cell contains multiple sub-electrodes from different electrode sets, improving signal differentiation and reducing interference. The configuration is particularly useful in capacitive touch panels where accurate touch position detection is critical, such as in smartphones, tablets, and other touch-sensitive devices. The interleaved sub-electrodes enable finer resolution and better noise rejection, leading to improved touch sensitivity and reliability.
14. The touch panel of claim 13 , further comprising: a first bridge electrically connecting the first sub electrode and the second sub electrode; and a second bridge electrically connecting the third sub electrode and the fourth sub electrode.
A touch panel system includes a plurality of electrodes arranged in a grid pattern to detect touch inputs. The electrodes are divided into sub-electrodes to improve signal integrity and reduce interference. The touch panel further includes conductive bridges that electrically connect pairs of sub-electrodes. Specifically, a first bridge connects a first sub-electrode to a second sub-electrode, while a second bridge connects a third sub-electrode to a fourth sub-electrode. These bridges ensure consistent electrical continuity across the sub-electrodes, enhancing touch sensitivity and accuracy. The design addresses issues related to signal distortion and cross-talk in multi-touch sensing applications, particularly in large-area touch panels where electrode segmentation is necessary. The bridges are positioned to minimize visual obstructions while maintaining reliable electrical connections. This configuration improves the overall performance of the touch panel by ensuring uniform signal distribution and reducing noise, making it suitable for high-precision touch interfaces in devices such as smartphones, tablets, and interactive displays.
15. The touch panel of claim 1 , wherein at least one of the third touch electrodes comprises a variable width in the first direction.
A touch panel system includes a plurality of first touch electrodes extending in a first direction and a plurality of second touch electrodes extending in a second direction, forming a grid for capacitive touch sensing. The system also includes a plurality of third touch electrodes positioned between the first and second touch electrodes, where at least one of these third touch electrodes has a variable width in the first direction. This variable width design allows for improved touch sensitivity or signal uniformity across the panel. The third touch electrodes may be used for additional sensing functions, such as proximity detection or enhanced touch resolution. The variable width feature can help compensate for signal variations caused by manufacturing tolerances or environmental factors, ensuring consistent performance. The touch panel may be integrated into electronic devices like smartphones, tablets, or touchscreens, where precise and reliable touch input is required. The variable width design of the third touch electrodes distinguishes this system from conventional touch panels with uniformly sized electrodes, addressing issues like signal distortion or dead zones in touch detection.
16. The touch panel of claim 1 , wherein first end portions of the third touch electrodes are commonly connected to a same conductive line.
A touch panel system includes a plurality of touch electrodes arranged in a grid pattern to detect touch inputs. The system addresses the challenge of improving signal integrity and reducing interference in capacitive touch sensing by optimizing the electrical connections between touch electrodes. The touch panel includes first and second sets of touch electrodes arranged in a grid, where the first set is used for self-capacitance sensing and the second set is used for mutual-capacitance sensing. The touch electrodes are connected to conductive lines that transmit sensing signals to a controller. To enhance signal quality and reduce noise, the touch panel includes a third set of touch electrodes, where the first end portions of these electrodes are commonly connected to a single conductive line. This shared connection reduces the number of conductive lines required, simplifies the panel's wiring structure, and improves manufacturing efficiency while maintaining accurate touch detection. The design ensures that the third touch electrodes can still function effectively for touch sensing despite the shared connection, as the controller compensates for any potential signal variations. The overall system provides a more reliable and cost-effective touch panel solution.
17. The touch panel of claim 1 , further comprising: first conductive lines connected to the first touch electrodes, the second touch electrodes, and the third touch electrodes; and a guard ring surrounding the first conductive lines to protect the first touch electrodes, the second touch electrodes, the third touch electrodes, and the first conductive lines from static electricity.
This invention relates to a touch panel with enhanced electrostatic discharge (ESD) protection. The touch panel includes multiple touch electrodes arranged in a grid pattern, where the first, second, and third touch electrodes are interconnected by conductive lines. The conductive lines are further protected by a guard ring that surrounds them, shielding the entire electrode and conductive line structure from static electricity. The guard ring acts as a barrier, preventing electrostatic discharge from damaging the sensitive touch sensing components. This design ensures reliable touch detection by minimizing interference from external electrical disturbances. The touch panel is particularly useful in electronic devices where touch sensitivity and durability are critical, such as smartphones, tablets, and other interactive displays. The guard ring's protective function extends to all connected electrodes and conductive lines, maintaining signal integrity and operational stability. This solution addresses the problem of ESD-induced failures in touch panels, which can lead to malfunctions or permanent damage. By integrating the guard ring directly into the touch panel structure, the invention provides a robust and efficient way to safeguard touch-sensitive components without requiring additional external shielding.
18. The touch panel of claim 17 , wherein: the guard ring comprises second conductive lines; and the second conductive lines are configured to provide energy to a touch input member.
A touch panel system includes a guard ring structure with conductive lines that provide energy to a touch input member, such as a stylus or finger. The guard ring surrounds a sensing area to reduce interference and improve signal integrity during touch detection. The conductive lines within the guard ring are designed to transmit power or signals to the touch input member, enabling features like active pen tracking or capacitive coupling for enhanced input accuracy. This configuration ensures reliable touch sensing while minimizing electromagnetic interference and noise. The system may include multiple conductive layers, where the guard ring and its associated lines are integrated into one or more of these layers to optimize performance. The touch panel may also incorporate additional components, such as electrodes, routing traces, and shielding elements, to further enhance touch detection and reduce signal distortion. The guard ring's conductive lines are strategically positioned to maintain consistent energy delivery to the touch input member, ensuring stable operation across the entire sensing area. This design is particularly useful in high-precision touchscreens for devices like smartphones, tablets, and interactive displays.
19. The touch panel of claim 18 , further comprising: a loop coil adjacent to the second conductive lines, wherein the loop coil surrounds the first touch electrodes, the second touch electrodes, the third touch electrodes, and the first conductive lines.
This invention relates to touch panel technology, specifically addressing the challenge of improving signal integrity and reducing interference in capacitive touch panels. The touch panel includes multiple layers of conductive lines and electrodes arranged to detect touch inputs while minimizing electromagnetic interference (EMI) and cross-talk between components. The touch panel features a first set of conductive lines connected to first touch electrodes, a second set of conductive lines connected to second touch electrodes, and a third set of conductive lines connected to third touch electrodes. These conductive lines and electrodes are arranged in a grid-like structure to form a sensing matrix. To enhance performance, a loop coil is positioned adjacent to the second conductive lines, surrounding the first, second, and third touch electrodes, as well as the first conductive lines. The loop coil helps shield the touch electrodes and conductive lines from external electromagnetic interference, improving signal accuracy and reducing noise. The loop coil's placement ensures that it does not interfere with the touch sensing functionality while providing effective shielding. This design is particularly useful in high-interference environments, such as near wireless communication devices or in applications requiring high-precision touch detection. The overall structure allows for reliable touch input detection while maintaining signal integrity.
20. A display apparatus comprising: a display panel comprising: a circuit substrate, an organic light emitting element disposed on the circuit substrate; and an encapsulating glass covering the organic light emitting element; and a touch panel disposed on the display panel, the touch panel comprising: first touch electrodes comprising sub electrodes spaced apart from one another in a first direction, the first touch electrodes being spaced apart from one another in a second direction crossing the first direction; second touch electrodes extending in the second direction, the second touch electrodes being spaced apart from one another in the first direction; and third touch electrodes extending in the second direction and spaced apart from one another in the first direction, the third touch electrodes being shaped differently than the second touch electrodes, wherein: the first touch electrodes, the second touch electrodes, and the third touch electrodes are disposed in the same plane as one another and electrically insulated from one another; the first touch electrodes and the second touch electrodes are configured to detect, independent of the third touch electrodes, a first touch of a first touch input member; and the first touch electrodes and the third touch electrodes are configured to detect, independent of the second touch electrodes, a second touch of a second touch input member different from the first touch input member.
This invention relates to a display apparatus with an integrated touch panel capable of detecting multiple simultaneous touch inputs using distinct electrode configurations. The apparatus includes a display panel with an organic light-emitting element on a circuit substrate, covered by an encapsulating glass. A touch panel is disposed on the display panel, featuring three types of touch electrodes in the same plane but electrically insulated from one another. The first touch electrodes consist of sub-electrodes spaced apart in a first direction, with the first touch electrodes themselves spaced apart in a second, crossing direction. The second and third touch electrodes extend in the second direction but are spaced apart in the first direction, with the third electrodes having a different shape than the second. The first and second touch electrodes detect a first touch input independently of the third electrodes, while the first and third touch electrodes detect a second touch input from a different input member, also independently of the second electrodes. This design enables simultaneous detection of multiple touch inputs with distinct electrode configurations, improving touch sensitivity and functionality in display devices.
21. The display apparatus of claim 20 , further comprising: a magnetic shielding sheet configured to shield the touch panel from a magnetic force, the display panel being disposed on the magnetic shielding sheet; and conductive lines disposed on the magnetic shielding sheet, the conductive lines being configured to provide energy to a touch input member.
A display apparatus includes a touch panel and a display panel, where the touch panel is configured to detect touch inputs. The apparatus further includes a magnetic shielding sheet positioned to shield the touch panel from external magnetic forces, ensuring accurate touch detection. The display panel is placed on top of the magnetic shielding sheet. Additionally, conductive lines are integrated into the magnetic shielding sheet, providing electrical energy to a touch input member, such as a stylus or other input device. This configuration prevents magnetic interference from affecting touch sensitivity while enabling wireless power transfer to the touch input member. The magnetic shielding sheet may be made of a material that blocks magnetic fields, such as a ferromagnetic alloy, while the conductive lines are designed to transmit power efficiently without disrupting the shielding function. This design improves touch accuracy in environments with strong magnetic fields, such as near electronic devices or industrial equipment, while also supporting wireless charging for compatible input devices.
22. The display apparatus of claim 20 , further comprising: a cushion sheet configured to protect the touch panel from an applied force, the display panel being disposed on the cushion sheet; and a power coil disposed on the cushion sheet, the power coil being configured to provide energy to a touch input member.
A display apparatus includes a touch panel and a display panel, where the touch panel is configured to detect touch inputs. The apparatus further includes a cushion sheet positioned to protect the touch panel from external forces, with the display panel mounted on the cushion sheet. Additionally, a power coil is integrated into the cushion sheet, designed to wirelessly transmit energy to a touch input member, such as a stylus or other interactive device. This configuration ensures durability against physical impacts while enabling wireless power transfer to enhance touch input functionality. The cushion sheet serves as a protective layer and a structural base for both the display panel and the power coil, ensuring stable operation and energy transmission. The system is particularly useful in devices requiring robust touch interfaces with wireless charging capabilities, such as tablets, smartphones, or interactive displays. The power coil's placement on the cushion sheet optimizes energy transfer efficiency while maintaining structural integrity.
23. The display apparatus of claim 22 , further comprising: a heat dissipating member configured to dissipate heat from the display panel, the touch panel being disposed on the heat dissipating member; and a magnetic shielding material disposed on the heat dissipating member; and wherein the cushion sheet, the power coil, the magnetic shielding material, and the heat dissipating member are integrated together to form a component of the display apparatus.
A display apparatus includes a display panel and a touch panel positioned on the display panel. The apparatus further incorporates a heat dissipating member that dissipates heat generated by the display panel, with the touch panel mounted on this heat dissipating member. A magnetic shielding material is also placed on the heat dissipating member to reduce electromagnetic interference. Additionally, the apparatus includes a cushion sheet and a power coil, which are integrated with the heat dissipating member, the magnetic shielding material, and the touch panel to form a unified component. This integration simplifies assembly and ensures efficient heat dissipation and magnetic shielding while maintaining touch functionality. The design addresses challenges in thermal management and electromagnetic interference in display devices, particularly those with touch-sensitive interfaces. The combined structure enhances performance by reducing heat buildup and minimizing electromagnetic disturbances, which can affect display quality and touch accuracy. The integrated component approach also streamlines manufacturing by reducing the number of separate parts and assembly steps.
24. The display apparatus of claim 20 , wherein the touch panel further comprises: first conductive lines connected to the first touch electrodes, the second touch electrodes, and the third touch electrodes; and a guard ring surrounding the first conductive lines to protect the first touch electrodes, the second touch electrodes, the third touch electrodes, and the first conductive lines from static electricity.
A display apparatus includes a touch panel with multiple touch electrodes for detecting touch inputs. The touch panel comprises first, second, and third touch electrodes arranged to sense touch interactions. First conductive lines are connected to these electrodes to transmit touch detection signals. To prevent damage from static electricity, a guard ring surrounds the conductive lines, providing electrostatic discharge (ESD) protection. The guard ring shields the touch electrodes and conductive lines, ensuring reliable touch functionality. This design enhances durability and performance by mitigating the risk of electrostatic interference or damage during operation. The apparatus is particularly useful in touch-sensitive displays where maintaining signal integrity and protecting sensitive components from external electrical disturbances is critical. The guard ring acts as a barrier, redirecting static charges away from the conductive paths and electrodes, thereby preserving the accuracy and responsiveness of the touch detection system. This configuration is applicable in various display technologies, including but not limited to smartphones, tablets, and interactive kiosks.
25. The display apparatus of claim 24 , wherein: the guard ring comprises second conductive lines; and the second conductive lines are configured to provide energy to a touch input member.
The invention relates to a display apparatus with an integrated touch input system. The apparatus includes a display panel and a guard ring structure surrounding the display panel. The guard ring comprises conductive lines that serve as a protective barrier against electromagnetic interference (EMI) and electrostatic discharge (ESD). Additionally, the guard ring includes second conductive lines specifically designed to supply energy to a touch input member, such as a touch sensor or digitizer, integrated into the display. This dual functionality allows the guard ring to both shield the display and power the touch input system, reducing the need for separate conductive pathways. The conductive lines in the guard ring may be arranged in a pattern that optimizes both shielding performance and energy distribution to the touch input member. The touch input member detects user interactions, such as finger or stylus inputs, and communicates with the display controller to enable touch-based interactions. The apparatus may be used in devices like smartphones, tablets, or other touch-sensitive displays where space efficiency and EMI/ESD protection are critical.
26. The display apparatus of claim 25 , wherein the touch panel further comprises: a loop coil disposed adjacent to the second conductive lines, wherein the loop coil surrounds the first touch electrodes, the second touch electrodes, the third touch electrodes, and the first conductive lines.
A display apparatus includes a touch panel with multiple conductive lines and touch electrodes for detecting touch inputs. The touch panel has first conductive lines connected to first touch electrodes, second conductive lines connected to second touch electrodes, and third conductive lines connected to third touch electrodes. The first and second touch electrodes form a first touch sensing layer, while the third touch electrodes form a second touch sensing layer. The first and second touch electrodes are arranged in a grid pattern, and the third touch electrodes are arranged in a pattern that allows for touch sensing in both the first and second layers. The touch panel further includes a loop coil adjacent to the second conductive lines, surrounding the first, second, and third touch electrodes, as well as the first conductive lines. This loop coil may be used for wireless power transfer or communication, enhancing the functionality of the touch panel by integrating additional features without interfering with touch sensing. The design ensures that the loop coil does not disrupt the operation of the touch electrodes, maintaining accurate touch detection while enabling wireless capabilities. This configuration is particularly useful in modern display devices where touch functionality and wireless features are increasingly integrated.
27. The display apparatus of claim 20 , further comprising: a window disposed on the touch panel to cover the touch panel; and a power coil disposed in a light blocking area on a rear surface of the window, the power coil being configured to provide energy to a touch input member.
A display apparatus includes a touch panel for detecting touch inputs and a window covering the touch panel. The window has a light-blocking area on its rear surface, where a power coil is embedded. This power coil wirelessly transmits energy to a touch input member, such as a stylus or other input device, enabling it to operate without internal batteries. The touch panel detects the position of the touch input member, allowing for precise interaction with the display. The power coil is positioned in a non-display area to avoid interfering with the visual output while ensuring continuous power delivery to the touch input member. This design enhances usability by eliminating the need for frequent charging of the input device and ensures reliable wireless power transfer during touch interactions. The apparatus may also include additional features like a display panel and a housing to support the touch panel and window assembly. The power coil's placement in the light-blocking area ensures efficient energy transfer while maintaining the display's functionality.
28. The display apparatus of claim 20 , further comprising: a first touch driving chip configured to sense, in a first touch mode, coordinates of the first touch based on output from the first touch electrodes and the second touch electrodes; and a second touch driving chip configured to sense, in a second touch mode different from the first touch mode, coordinates of the second touch based on output from the first touch electrodes and the third touch electrodes.
A display apparatus includes a touch-sensitive display panel with multiple touch electrodes arranged in a grid. The apparatus addresses the challenge of accurately detecting multiple simultaneous touches on a display, particularly when using different touch sensing modes. The display panel includes first, second, and third sets of touch electrodes, where the first and second electrodes are used in a first touch mode to detect a first touch, while the first and third electrodes are used in a second touch mode to detect a second touch. The apparatus employs two separate touch driving chips: a first chip processes signals from the first and second electrodes to determine the coordinates of the first touch in the first mode, and a second chip processes signals from the first and third electrodes to determine the coordinates of the second touch in the second mode. This dual-chip configuration allows for independent and simultaneous touch detection, improving accuracy and responsiveness for multi-touch interactions. The system is designed to handle different touch modes, such as mutual capacitance and self-capacitance sensing, to enhance touch detection performance. The apparatus is particularly useful in high-performance touchscreens where multiple touches must be distinguished and processed efficiently.
29. The touch panel of claim 1 , wherein: the first touch electrodes and the second touch electrodes are configured to output, in a first touch mode, signals to detect coordinates of the first touch; and the second touch electrodes and the third touch electrodes are configured to output, in a second touch mode different from the first touch mode, signals to detect coordinates of the second touch.
30. The touch panel of claim 1 , wherein the first touch electrodes, the second touch electrodes, and the third touch electrodes comprise substantially the same material as one another.
A touch panel includes multiple layers of touch electrodes arranged in a stacked configuration to detect touch inputs. The panel comprises first touch electrodes, second touch electrodes, and third touch electrodes, each layer positioned at different heights within the panel structure. The first and second touch electrodes are configured to detect touch inputs in a first sensing mode, while the second and third touch electrodes are configured to detect touch inputs in a second sensing mode. The electrodes are arranged such that the second touch electrodes are positioned between the first and third touch electrodes, allowing for multi-layer touch sensing. The first, second, and third touch electrodes are made from substantially the same material, ensuring uniformity in electrical properties and manufacturing consistency. This design enables the panel to support multiple sensing modes while maintaining structural and performance uniformity across the electrode layers. The uniform material composition simplifies fabrication and reduces variability in touch sensitivity and response. The stacked electrode configuration enhances touch detection accuracy and enables advanced touch functionalities, such as multi-touch and gesture recognition, by leveraging the different sensing modes provided by the distinct electrode layers.
31. The display apparatus of claim 20 , wherein the first touch electrodes, the second touch electrodes, and the third touch electrodes comprise substantially the same material as one another.
The invention relates to a display apparatus with an integrated touch sensing system. The apparatus includes a display panel and a touch sensor layer over the display panel. The touch sensor layer comprises first touch electrodes, second touch electrodes, and third touch electrodes. The first touch electrodes are arranged in a first direction, the second touch electrodes are arranged in a second direction, and the third touch electrodes are arranged in a third direction. The first, second, and third touch electrodes are configured to detect touch inputs by sensing changes in capacitance. The first, second, and third touch electrodes are made of substantially the same material, ensuring uniformity in electrical properties and manufacturing simplicity. The touch sensor layer may be integrated into the display panel, such as within a color filter layer or a thin-film transistor layer, to reduce thickness and improve optical performance. The apparatus may also include a touch controller configured to drive the touch electrodes and process touch signals to determine touch positions and gestures. The use of multiple electrode directions enhances touch sensitivity and accuracy, allowing for precise detection of multi-touch inputs. The invention addresses the need for a compact, high-performance touch display with improved manufacturing efficiency and consistent touch sensing capabilities.
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December 24, 2019
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